About William and Phyllis Mack

William and Phyllis Mack
William and Phyllis Mack in October 2016 with Penn President Amy Gutmann and Wharton Dean Geoff Garrett.


William L. Mack (W’61) is a former Vice Chair of the Board of Trustees of the University of Pennsylvania and now a Trustee Emeritus. He has served on the Wharton Board of Overseers since 1998 and began a three-year term as Chair in 2013; he was formerly a member and Chair of the Wharton Undergraduate Executive Board, where he provided invaluable counsel. He was Vice Chair of the Advisory Board of Wharton’s Zell/Lurie Real Estate Center. Mr. Mack is the Chairman of the Mack Real Estate Group, a real estate investment firm. He was the Founder and Chairman of AREA Property Partners, a major global real estate investment company. In addition, Mr. Mack is Chairman of the Board of Mack-Cali Realty Corporation, one of the nation’s largest real estate investment trusts (REITs).

Mrs. Mack serves on the board of Penn’s Institute of Contemporary Art and has hosted many Wharton/Penn events.

In 2001, William and Phyllis Mack established the Mack Center through a generous gift. The Macks also funded the Center’s transition to the Mack Institute for Innovation Management in 2013.